Safety lock for seat belt buckle



FIG. 1 is a front elevated view of a safety lock for seat belt buckle showing my new design;

FIG. 2 is a rear elevated view of the safety lock for seat belt buckle;

FIG. 3 is a right side elevated view of the safety lock for seat belt buckle;

FIG. 4 is a left side elevated view of the safety lock for seat belt buckle;

FIG. 5 is a top view of the safety lock for seat belt buckle; and,

FIG. 6 is a perspective view of the safety lock for seat belt buckle.

The details shown in broken lines in FIG. 6 are for illustrative purposes only and form no part of the claimed invention. 

The ornamental design for a safety lock for seat belt buckle, as shown and described. 